Patent · US Expired

Flame detection apparatus and method

US6278374A · kind A · utility

47Cited by
19References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 5, 2000
Grant dateAug 21, 2001
Priority date
Expiry dateMay 5, 2020

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF23N2229/20
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

The present invention relates to flame detection apparatus and method. The present invention provides a method and apparatus for monitoring the status of a combustion unit having at least one bumer. Initially, a digital image of a flame corresponding to a flame is acquired. Next, a value for the relative light intensity of a frame defining an area of the image corresponding to the flame for the burner is calculated. The relative light intensity value is compared against a tolerance range for the frame. If the relative light intensity value is outside the tolerance range then an alarm state output is generated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.